1. Complete the following sentences: a. Like a hypothesis test, a chi-square test allows researchers to... /1 b. Unlike a hypothesis test, researchers use a chi-square test when the data they collect is... '1 2. A researcher is interested in whether View on Level of Teaching teachers have different views about internet Elementary High College Total internet censorship depending on the level censorship School at which they teach. She surveys a For 12 25 random sample of teachers and gathers the data to the right. Test whether views Against 4 5 14 23 about internet censorship differ by Total 16 14 18 48 teaching level. Set alpha to .01 and round to two decimal places a. Step 1: Identify what is being compared /1.5 b. Step 2: State null and research hypotheses 12 c. Step 3: Determine critical value /1 d. Step 4: Calculate test statistic 13 e. Step 5: Make a decision and interpret results12 3. A criminologist is interested in whether visible minority drivers are targeted more by police in Montreal than white drivers. The researcher obtains a random sample of 160 traffic violations recorded by the police and he organizes the sample data by the race of the driver. From census data for the city the researcher also determines the percentage of the city's entire population by race. Using the researcher's data, test whether the percentage of traffic violations recorded by race is significantly different from the racial breakdown of the city as a whole. Set alpha to .05 and round to two decimal places. Race Frequency of traffic % of traffic violations for % of city population violations for sample sample White 96 60 Black 52 32.5 15 Other 12 7.5 10 Total 160 100 100 a. Step 1: Identify what is being compared /1.5 b. Step 2: State null and research hypotheses 12 c. Step 3: Determine critical value /1 d. Step 4: Calculate test statistic 12 e. Step 5: Make a decision and interpret results